crane



(No Model.) a Sheets-Sheet 1.

R. T. CRANE 85 J. (J. KILGORB.

RADIATOR.

No. 580,572. PatentedApr. 1a, 1897.

i =9 IIIIIIIII/lil Wei/Z66 666 (N0 M0del.)- 3 Sheets-Sheet 1.. R. T. CRANE & J. G. KILGORE.

RADIATOR.

Patented Apr. 13, 1897.

N i w x Q Q :1 Q MM HWW e w b mflHr/y h llv'frzea 666 3 Sheets-Sheet 2. E.

(No Model.)

B. T. CRANE & J. o. KILGOR RADIATOR.

Patented Apr. 13, 1

(No Model.) 3 Sheets-Sheet 3.

R. T. CRANE & J. C. KILGORE. RADIATOR.

No. 580,572. Patented Apr. 13, 1897.

M; e 7* NH H" IL 7 I n H ill" '14 MW M WZKGSSGS I76 670602 5 IINTTED @TATES: PATENT OEEieE.

RICHARD T. CRANE AND JOHN C. KILGORE, OF CHICAGO, ILLINOIS; SAID KILGORE ASSIGNOR TO THE CRANE COMPANY, OF SAME PLACE.

RADIATOR.

SPECIFICATION forming part Of Letters Patent No. 580,572, dated April 13, 1897'.

Application filed Jnly15, 1896. Serial No. 699,330. (No model.)

To whom, it; may concern: box separated into two compartments 1 and Be it known that we, RICHARD T. CRANE 1 by a horizontal partition 4. The rear-end and JOHN C. KILGORE, citizens of the United casting is composed of two separate hollow States, residingin Chicago, Cook county, Illiboxes, the upper one of which 2 movably 55 5 nois, have invented certain new and useful rests upon the lower one 2 the plane of con- Improvements in Radiators, of which the foltact, however, being provided with a tongue lowing is a specification. and groove 5 (see Fig. 7) for the purpose of The objects of our invention are, first, to preventing lateral displacement of the two provide a radiator of which the entire raboxes relative to each other while permitting 6o [0 diating-surface or a parteither one-third, the endwise movement, which results from one-half, two-thirds, or any predetermined the uneven expansion of the tubes when one amountmaybe used at will; second, to prepart, either the upper or the lower, is used vent strains on the part of the radiator-coil, independently of the other. due to uneven expansion and contraction, Steam-inlets 6 and 6, controlled by valves z 5 and, third, to insure a more even distribution 7 and 7 are tapped into the compartments of the steam as it circulates through the va- 1 and l respectively, at a point ashort disrious passages. 4 tance above the bottom of the same. This, To the accomplishment of these ends our leaves at the bottom of each compartment a invention consists in certain details of conpocket adapted to hold a small quantity of 2o struction to be specifically pointed out in water. Inside of each of the compartments the claims, and for the better understanding" 1" and 1 we secure a partition-plate, 8* and of which reference may now be had to the ac- 8", perforated by small holes 9 opposite the companying drawings, in whichends of the radiating-tubes and having its Figure 1 represents a side elevation of a ralower end projecting down a slight distance 25 diatorembodying our improvements. Fig. 2 below the bottom of the steam-supply pipe,

is a plan section of the same on the line 2 2 so that when the water which collects in the of Fig. 1. Fig. 3 is an end view of a radiator pockets previously mentioned rises level with embodying our improvements composed of the bottom of the opening through which it two sections or compartments divided on a drains it will cover the ends of the perforated o horizontal plane. Fig. 4 is aside view of the partition-plates and form a kind of trap. same: Fig. 5 is a section taken on the line This provision secures, as nearly as may be, 5 5 of Fig. 4. Fig. 6 is a partial vertical seca perfectly-even distribution of the steam to tion of one of the end castings. Fig. 7 is a the differentradiating-tubes, for as the water section taken on the line 7 7 ofFig. 4. Fig. collected in the traps at the bottom of each 3 5 8 is a plan section taken through the center of the compartments interferes with the free of two ofthe radiating-tubes. Fig. 9 is a side passage of the steam under the ends of the elevation on one of the end castings, showing perforated plates it rises and passes through at its lower end in broken section the conthe perforations in the partition-plates before struction of trap. Fig. 10 is a section taken reaching the tubes, while at the same time 40 on the line 10 10 of Fig. 8. Fig. 11 is a plan there is no interference with proper draining view of the casting which forms the connecof the condensed water out of the pipes as it tion between the supply-pipe and the two freely passes under the lower ends of the perbranches which lead to the head-end casting. forated plates, the space being clearly shown Referring now more particularly to Figs. in Fig. 5 at 10. 45 3, 4, 5, 6, and 7, which illustrate the form of In Figs. 8, J, 10, and 11 we have shown a construction which we prefer, it will be seen modified form of our invention, in which the that in general we construct our radiator in division between the two parts of the radiator three parts. These we shall designate as is made vertically instead of horizontally, alhead-end casting, (marked 1,) rear-end though, as we have stated, we prefer the con- I00 50 casting 2, and radiating-tubes o. The struction first described. A horizontal dihead-end casting is in the shape of a hollow vision more readily separates into unequal parts, forexample, as shown, one having three pairs of tubes and the other five pairs,whereas in the vertical division each side will more properly contain the same number. Thus with the horizontal division we secure three different degrees of radiating-surface, while wit-h the vertical division we get but two.

In Figs. 8 and 9 we have used the same reference-characters as were used in the preceding, figures to designate corresponding parts. In these figures the location and arrangement of the perforated plate and the water-trap at its lower end are more clearly shown than before. To prevent the two movable boxes comprising the end casting 2 from separating at their bearing-face, we have pro- Vided a bolt 11, the arrangement of which is clearly shown in the drawings. Other means of fastening could be substituted forthe bolt, if desired.

Referring now back to Figs. 1 and 2, attention is called to the fact that the radiatingtubes are bent slightly at ornear their middle point. This is done to still further compensate for unequal expansion and contraction which may result from steam feeding through to one tube a little faster than another, and thus to prevent all possibility of straining any of the joints and consequent leakage where the tubes are screwed into the end castings. Thus in Figs. 1 and 2 it will be seen that if steam should feed into the topmost tube a little slower than it did to the tube or radiating-pipe next below it, and as these two tubes are both screwed into the same castings at each end, there would be a strain produced on both of them which in time would cause leakage around the threads if there were no provision made which would permit either one orboth of the tubes to give a little. We have found by experiment that a very slight bending of the tubes out of a straight line accomplishes the desired result, as they will then spring sidewise sufficiently to save the joint in case of unequal expansion, while if they are made perfectly straight they will not yield at all, and leaks soon appear around the threads.

Havingthus described our invention, what we claim as new, and desire to securebyLetters Patent, is

1. In a radiator the combination with a head. end casting, a rear-end casting, radiatingtubes connecting the same, and an inlet-opening in said head-end casting, of a perforated partition-plate within said head-end casting, said plate being set vertically with its lower end extending below the bot-tom of said inletopening whereby the steam is caused to ascend and pass through the-perforations, substantially as described.

2. In a radiator the combination with a headend casting, a rear-end casting, radiatingtubes connecting the same and an inlet-opening in said head-end casting; of aperforated partition-plate within the head-end casting, extending downward to a point below the bottom of said inlet-openin g, but not to the bottom of the cavity within the head-end casting, the perforations in said plate being arranged ator near the openings into said radiatingtubes, substantially as shown and described.

3. In a radiator, the combination with two end castings, of tubes, for connecting the same together, which are, at or near their middle point, bent slightly out of a straight line, substantially as described.

4. In a radiator, the combination of a headend casting containing two compartments of unequal dimensions separated by a horizontal partition; a rear-end casting comprising two separate hollow boxes of unequal dimensions corresponding with the compartments of the head-end casting, the upper one of which movablyrests upon the lower one; and radiating-tubes connecting said end castings together; substantially as described.

5. In a radiator, the combination of a headend casting containing two compartments; a rear-end casting comprising two separate hollow boxes; and a series of radiating-tubes connecting each of said compartments with one of said boxes, each of said boxes being movable independently of the other to compensate for expansion of the tubes substantially as shown and described.

6. In a radiator the combination of aheadend casting 1, containing compartments 1 and 1 a rear-end casting 2, comprising two separate hollow boxes 2 and 2 each movable independently of the other; and a series of radiating-tubes connecting each of said compartments with one of said boxes, substantially as shown and described.

RICHARD T. CRANE. JOHN c. KILGORE.

Witnesses:

PAUL SYNNEsTvED'r, JOHN CONWAY. 

